Getting and sending ethernet-frames directly

[Christoffer Hall-Frederiksen]

I have a rather special situation, where I want to read and write raw
ethernet-frames from an ethernet interface. The deal is: I have a
machine with a NICs on to LANs. I need to brigde traffic between these
interfaces, but I basicly need to manipulate it first. And I need
promisc-mode because I also have to listen to everything on this
network. The protocol (a level up from ethernet) is not a common one
(long and boring story), so I really need access to the raw frames for
both reading and writing. I've looked at netlink, but there doesn't
seem to be access to the ethernet-frames. 

My question is (naturally) how?  


PS:

If the answer answer is RTFM, then I will politely ask WFM (which
f*%?ing manual ;).


--
        Christoffer
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